D D · W. Davis · Walter Davis
| title | media type | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|---|
| The Public Regulation of Railways | Paperback | 978-1-103-12240-0 (1-103-12240-1) | 2009 |
| The Public Regulation of Railways | " | 978-1-103-40034-8 (1-103-40034-7) | 2009 |
| The Public Regulation of Railways | Hardcover | 978-1-103-40044-7 (1-103-40044-4) | 2009 |